What Is The Rarest Colour In Nature?
YouthNatureScienceWorldBiology Discover what colors are the most rare to see in nature, and how physics and evolution drive their scarcity.
How Do Oysters Make Pearls?
YouthNatureScienceBiology Explore how oysters use calcium carbonate to create pearls, and how this chemical compound creates a vast array of other materials.
A Chameleons Race Against Time
YouthAnimalsFactsNatureScienceBiology Discover how a Labord’s chameleon learns how to hunt for a meal and find a potential mate, all in a short lifespan of just four months.
4 Plants that Hunt Underground
AdultsEnvironmentLifeNatureScienceBiology Carnivorous plants tend to live in environments where the soil can’t provide enough of the nutrients they need to survive, so they have developed all sorts of methods to trap and consume the critters of the area, including hunting underground!
Humans Versus The Common Cold
YouthFactsHealthScienceBiology Dig into the two main ways we fight the viruses that cause the common cold, and find out if it’s possible to create a cure.
There’s No Such Thing As “Warm-” Or “Cold-” Blooded
AdultsBiologyHealthLifeScienceAnimals The concept of warm-blooded and cold-blooded animals is outdated because there are actually tons of different animal thermoregulation strategies.
The Real Reason Leaves Change Color In the Fall
AdultsEducationLifeNatureScienceBiology Want to learn more about the topic in this week’s video? Here are some keywords to get your googling started:
Leaf senescence, chlorophyll, carotenoid, anthocyanin
Photosynthesis
AdultsLifeNatureScienceBiology Hank explains the extremely complex series of reactions whereby plants feed themselves on sunlight, carbon dioxide and water, and also create some by products we're pretty fond of as well.
Lungs Are Great, But They Have One Weakness...
AdultsBiologyHealthHumanEnvironment Our respiratory systems do a great job of protecting us, but they are no match for the smallest pollution particles created by the modern world.
Paleontologist Answers Dinosaur Questions From Twitter
AdultsAnimalsEducationLifeScienceBiology Paleontologist Dr. Hans Sues answers the internet's burning questions about dinosaurs. Why did T-Rex have such tiny arms?